CN220400186U

CN220400186U - Automobile lamp based on light guide pipe

Info

Publication number: CN220400186U
Application number: CN202322021168.8U
Authority: CN
Inventors: 李响铸; 董辉; 蔡金祥
Original assignee: Fuweihainuo Automobile Technology Changzhou Co ltd
Current assignee: Fuweihainuo Automobile Technology Changzhou Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-01-26
Anticipated expiration: 2033-07-31

Abstract

The automobile lamp based on the light pipe comprises a face mask, a shell, a light pipe assembly and a light source system, wherein the face mask and the shell are connected in a sealing mode to form a cavity, the face mask comprises a modeling pattern area and a non-modeling pattern area, the non-modeling pattern area is a non-light-transmitting area, and the modeling pattern area is a light-transmitting area; the light pipe assembly is arranged in the cavity and is profiled in the modeling pattern area; the light source system is arranged on the shell and is used for providing a light source for the light pipe assembly, and light rays emitted by the light source enter the light pipe assembly and uniformly light rays emitted by the light pipe assembly illuminate the modeling pattern area. The utility model has simple structure and convenient and quick installation, and can effectively solve the problems that the existing lamp uses the direct-projection array light source to generate illumination waste in a shading area and has high cost.

Description

Automobile lamp based on light guide pipe

Technical Field

The utility model relates to the technical field of automobile lamps, in particular to an automobile lamp based on a light pipe.

Background

An automotive luminaire design with a specific styling pattern can be seen as an expanding application of the luminaire on an automobile. The lamp can increase the light effect for the automobile at night, and can be a development direction of the automobile lamp under the trend that the automobile pursues innovative and personalized appearance effect.

At present, an automobile lamp is matched with the requirement of a specific appearance model, and a light emitting mode is mainly a direct-injection type array light source; its advantages are high brightness and uniformity, and high effect. However, some lamps are shaped by adopting complex symbols such as numerals or letters, and when the lamp is used, the light-transmitting surface light-emitting area and the light-shielding area are mixed together, and under the condition, the direct-irradiation array light source is used for generating illumination waste in the light-shielding area and increasing the cost; the utility model discloses a novel car logo lamp, which comprises a lamp shell, a lamp shade, an inner lamp shade and an LED module, wherein the lamp shade is in sealing connection with the lamp shell to form a cavity, the LED module is arranged in the cavity, the inner lamp shade is also arranged in the cavity and is positioned right in front of the LED module, and the inner lamp shade is used for homogenizing light emitted by the LED module and shielding the internal structure of the lamp; the lampshade comprises a Logo area and a non-Logo area, a protrusion perpendicular to the inner surface of the lampshade is arranged between the Logo area and the non-Logo area, the protrusion is used for separating the Logo area from the non-Logo area, the protrusion is a colorless transparent area, and the Logo area and the non-Logo area are non-transparent areas, namely a shading area. The LED module of this structure has adopted the direct-injection type array light source, and the direct-injection type array light source contains ten or more LED granule, and when the LED module was lighted, direct-injection type array light source will produce illumination waste and cost waste in the shading area.

Disclosure of Invention

The utility model aims to solve the defects of the prior art, provides an automobile lamp based on a light guide pipe, and can effectively solve the problems that the existing lamp can generate illumination waste and high cost in a shading area when a direct-projection type array light source is used.

The utility model is realized by the following technical scheme:

the automobile lamp based on the light pipe comprises a face mask, a shell, a light pipe assembly and a light source system, wherein the face mask and the shell are connected in a sealing mode to form a cavity, the face mask comprises a modeling pattern area and a non-modeling pattern area, the non-modeling pattern area is a non-light-transmitting area, and the modeling pattern area is a light-transmitting area; the light pipe assembly is arranged in the cavity and is profiled in the modeling pattern area; the light source system is arranged on the shell and is used for providing a light source for the light pipe assembly, and light rays emitted by the light source enter the light pipe assembly and uniformly light rays emitted by the light pipe assembly illuminate the modeling pattern area; the light guide pipe assembly is a split piece and comprises an outer contour light guide pipe and an inner combined light guide pipe, the light source comprises a first light source and a second light source, the first light source is used for being matched with the outer contour light guide pipe, light rays emitted by the first light source enter the outer contour light guide pipe, and the outer contour light guide pipe emits uniform light rays to illuminate corresponding parts on the modeling pattern area; the second light source is used for being matched with the inner combination light guide pipe, light rays emitted by the second light source enter the inner combination light guide pipe, and the inner combination light guide pipe emits uniform light rays to illuminate the rest part on the modeling pattern area.

Further, according to the light pipe-based automobile lamp, a clamping mechanism is arranged between the outer contour light pipe and the shell, and the clamping mechanism is used for fixing the outer contour light pipe on the shell; the clamping mechanism comprises a buckle and a plug-in hole, a plurality of buckles are arranged on the outer contour light pipe, a corresponding number of plug-in holes are arranged on the shell, and the buckles are clamped into the plug-in holes, so that the outer contour light pipe is fixed on the shell.

Further, according to the light guide-based automobile lamp, the outer contour light guide comprises an outer contour light guide head, an outer contour light guide coupling area and an outer contour annular light guide, wherein the outer contour annular light guide is in a non-closed annular shape, a gap is arranged between two ends of the outer contour light guide, the outer contour light guide head is connected to one end of the outer contour annular light guide, the outer contour light guide coupling area is arranged at the joint of the outer contour light guide head and the outer contour light guide coupling area, and the outer contour light guide coupling area is used for reflecting light entering the outer contour light guide head to the outer contour annular light guide; a plurality of buckles are uniformly distributed on the inner ring of the outer contour annular light guide; the shell is provided with an annular groove, the inner side wall of the annular groove is provided with a corresponding number of inserting and clamping holes, and the clamping buckles are clamped into the inserting and clamping holes, so that the outer contour light guide pipe is fixed in the annular groove.

Further, according to the light guide-based automobile lamp, the outer contour light guide head is provided with the extension plate, the extension plate is provided with the locating pin, the outer contour light guide head is used for being aligned with the first light source and receiving light rays emitted by the first light source, and the locating pin is used for being matched with the locating hole arranged on the light source system to limit the left, right, front and right positions of the outer contour light guide head.

Further, according to the light pipe-based automobile lamp, the inner combined light pipe is provided with an extension section, and the extension section is used for being inserted into a gap to illuminate and supplement the gap.

Further, the light pipe-based automobile lamp according to the present utility model further comprises a bracket by which the inner combination light pipe is supported on the housing; the support is provided with a support groove, the support groove is used for limiting and supporting the inner combined light guide, a plurality of hole sites for installation are respectively arranged on the support and the inner combined light guide, a plurality of screw hole columns are arranged on the shell, screws sequentially penetrate through the hole sites on the inner combined light guide, the hole sites of the support are connected with the screw hole columns, so that the inner combined light guide is fixed on the shell and is positioned on the inner side of the outer contour light guide.

Further, according to the light pipe-based automotive lamp of the present utility model, the inner combined light pipe includes an inner combined base light pipe, an inner combined partial mirror light pipe, an inner combined light pipe connection structure, and an inner combined furcation light pipe extension end, the inner combined furcation light pipe extension end is the extension section, and is disposed on the inner combined base light pipe for inserting into the gap; the inner combined partial mirror image light guide is generated by mirror symmetry of the inner combined base light guide without the lengthened end of the inner combined bifurcated light guide relative to the central axis of the modeling pattern area; the inner combined base light guide and the inner combined part mirror image light guide are connected through the inner combined light guide connecting structure, and a plurality of hole sites for installation are arranged on the inner combined light guide connecting structure.

Further, according to the light pipe-based automobile lamp, the inner combination base light guide comprises an inner combination base light guide head, an inner combination base light guide coupling area and an inner combination base forked light guide, the inner combination base light guide head is connected with the inner combination base forked light guide, the inner combination base light guide coupling area is arranged at the connection position of the inner combination base light guide coupling area and the inner combination base light guide coupling area, and the inner combination base light guide coupling area is used for reflecting light entering the inner combination base light guide head to the inner combination base forked light guide.

Furthermore, according to the light pipe-based automobile lamp, the outer contour light guide coupling area and the inner combination base light guide coupling area are both provided with light leakage coatings.

Further, according to the light pipe-based automobile lamp, the outer surface of the inner combined foundation bifurcation light guide is provided with grid patterns.

The utility model has simple structure and convenient and quick installation, the light pipe assembly split piece comprises an outer contour light pipe and an inner combined light pipe, the light source comprises a first light source and a second light source, the first light source is matched with the outer contour light pipe to emit uniform light to illuminate the corresponding part on the modeling pattern area, the second light source is matched with the inner combined light pipe to emit uniform light to illuminate the rest part on the modeling pattern area, thereby improving the light energy utilization rate of the system, reducing the system cost and effectively solving the problems of illumination waste and high cost in the shading area caused by using the direct-injection array light source in the prior art; in addition, due to the arrangement of the light leakage coating, stray light is prevented from leaking from the outer contour light guide coupling area and the inner combination base light guide coupling area to influence brightness uniformity, and the light-emitting effect of high brightness and high uniformity of the lamp is achieved.

Drawings

Fig. 1 is an exploded view of the present utility model.

FIG. 2 is a schematic illustration of a light pipe assembly according to the present utility model.

Fig. 3 is a schematic view of the front construction of the outer profile light pipe of the present utility model.

Fig. 4 is a schematic view of the rear structure of the outer profile light pipe of the present utility model.

Fig. 5 is a schematic view of the front structure of the internal combination light pipe of the present utility model.

FIG. 6 is a schematic view of the rear structure of the internal combination light pipe of the present utility model.

In the figure:

mask 1, molding pattern area 11, non-molding pattern area 12, shell 2, screw hole post 21, annular groove 22, light guide assembly 3, outer contour light guide 31, outer contour light guide head 311, extension plate 3111, outer contour light guide coupling area 312, outer contour annular light guide 313, end face 3131, inner combination light guide 32, inner combination base light guide 321, inner combination base light guide head 3211, inner combination base light guide coupling area 3212, inner combination base bifurcated light guide 3213, inner combination partial mirror image light guide 322, inner combination light guide connecting structure 323, first connecting structure 3231, second connecting structure 3232, third connecting structure 3233, inner combination bifurcated light guide extension end 324, light source system 4, first light source 41, second light source 42, clip mechanism 5, clip 51, insert clip hole 52, bracket 6, support slot 61, gap 7, dowel 8, and grid pattern 9.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1-6, an automobile lamp based on a light pipe comprises a face mask 1, a shell 2, a light pipe assembly 3 and a light source system 4, wherein the face mask 1 and the shell 2 are connected in a sealing way to form a cavity, the face mask 1 comprises a modeling pattern area 11 and a non-modeling pattern area 12, the modeling pattern area 11 is a light transmission area, and the non-modeling pattern area 12 is a non-light transmission area; the light pipe assembly 3 is arranged in the cavity and is profiled in the modeling pattern area 11, the light source system 4 is arranged on the shell 2 and is used for providing a light source for the light pipe assembly 3, and light rays emitted by the light source enter the light pipe assembly 3 and are emitted by the light pipe assembly 3 to uniformly light the modeling pattern area 11. Through the optimal design of the light pipe assembly 3, the lamp achieves the luminous effect of high brightness and high uniformity, thereby improving the light energy utilization rate, avoiding the use of a direct-injection type array light source, effectively solving the problems in the prior art, and simultaneously having simple structure and convenient and quick installation. Specifically, the mask 1 is made of PMMA material, the outer surface is high-light transparent, the inner surface is formed by connecting a modeling pattern area 11 and a non-modeling pattern area 12, the modeling pattern area 11 is a light transmission area, and the non-modeling pattern area 12 is a non-light transmission area. Of course, in order to prevent the internal structure of the mask 1 from being seen from the modeling pattern region 11, the modeling pattern region 11 may be provided in a semitransparent shape, and the internal structure is shielded by the semitransparent modeling pattern region 11, so that the internal structure is prevented from leaking out, and the appearance efficiency of the lamp is further improved. In this embodiment, the molding pattern region 11 is made translucent by the dermatoglyph surface treatment, and the non-molding pattern region 12 is black. During daytime, the modeling pattern area 11 is set off to present a modeling pattern by the non-modeling pattern area 12 on the mask 1 when the first light source 41 is not operating; at night, the first light source 41 is operated and the styling pattern region 11 is uniformly illuminated by the light pipe assembly 3 to present a styling pattern.

In order to prevent the light guide assembly 3 from having a complex shape, the light provided by the light source cannot be well transmitted to each corner on the light guide assembly 3, so that the irradiation light formed by the light guide assembly 3 has uneven conditions; the light guide assembly 3 is a split piece and comprises an outer contour light guide 31 and an inner combined light guide 32, wherein the light source comprises a first light source 41 and a second light source 42, the first light source 41 is used for being matched with the outer contour light guide 31, and the second light source 42 is used for being matched with the inner combined light guide 32. The first light source 41 provides light into the outer contoured light pipe 31 and uniform light from the outer contoured light pipe 31 illuminates the corresponding portion of the contoured pattern area 11, while the second light source 42 provides light into the inner combined light pipe 32 and uniform light from the inner combined light pipe 32 illuminates the remaining portion of the contoured pattern area 11. Specifically, a clamping mechanism 5 is arranged between the outer contour light pipe 31 and the shell 2, and the clamping mechanism 5 is used for fixing the outer contour light pipe 31 on the shell 2; the clamping mechanism 5 comprises a clamping buckle 51 and a clamping inserting hole 52, a plurality of clamping buckles 51 are arranged on the outer contour light pipe 31, a corresponding number of clamping inserting holes 52 are arranged on the shell 2, the clamping buckles 51 are clamped into the clamping inserting holes 52, the outer contour light pipe 31 is fixed on the shell 2, and the clamping connection enables installation to be more convenient and rapid. The inner combined light guide 32 is supported on the shell 2 through a bracket 6 arranged on the inner combined light guide 32 and is fixed on the shell 2 through screws; the inner combined light guide 32 is provided with a plurality of hole sites for installation, the support 6 is provided with the support groove 61, the support groove 61 is used for limiting and supporting the inner combined light guide 32, the support 6 is provided with a plurality of hole sites for installation near the support groove 61, the shell 2 is provided with a plurality of screw hole columns 21, the inner combined light guide 32 is limited and supported through the support groove 61, the screws sequentially penetrate through the hole sites of the inner combined light guide 32, the hole sites on the support 6 are connected with the screw hole columns 21, and therefore the outer contour light guide 31 is fixed on the shell 2, the installation is convenient and quick, the support is carried out through the support 6, and the light guide assembly 3 is closer to the mask 1, so that the irradiation brightness is improved. In this embodiment, four buckles 51 are provided on the outer-profile light pipe 31, a corresponding number of inserting holes 52 are provided on the housing 2, and the buckles 51 are inserted into the inserting holes 52, so that the outer-profile light pipe 31 is fixed on the housing 2. Of course, those skilled in the art will appreciate that the catch 51 may be provided on the housing 2 and the catch aperture 52 may be provided on the outer contoured light pipe 31. The support 6 is provided with three mounting hole sites near the support groove 61, the inner combined light guide 32 is provided with three mounting hole sites, the shell 2 is provided with three screw hole columns 21, the inner combined light guide 32 is supported on the shell 2 through the support 6, and screws sequentially penetrate through the hole sites of the inner combined light guide 32 and the hole sites on the support 6 to be connected with the screw hole columns 21, so that the inner combined light guide 32 is fixed on the shell 2. The light source system 4 comprises a first circuit board, a second circuit board, a first heat dissipation seat and a second heat dissipation seat, the first light source 41 is arranged on the first circuit board, the first circuit board is arranged on the first heat dissipation seat and is arranged on the shell 2 through the first heat dissipation seat, and the first heat dissipation seat is sealed with the shell 2 through a sealing gasket, so that the first light source 41 is positioned in the cavity and is matched with the outer contour light guide 31; the second light source 42 is arranged on the second circuit board, the second circuit board is arranged on the second heat dissipation seat and is arranged on the shell 2 through the second heat dissipation seat, the second heat dissipation seat is sealed with the shell 2 through a sealing gasket, so that the second light source 42 is positioned in the cavity and matched with the inner combined light guide 32, and the corresponding light source is convenient to dissipate heat through the first heat dissipation seat and the second heat dissipation seat, so that the service life of the light source is prolonged.

Further, the outer contour light guide 31 includes an outer contour light guide head 311, an outer contour light guide coupling area 312 and an outer contour annular light guide 313, the outer contour annular light guide 313 is in a non-closed annular shape, a gap 7 is arranged between two ends, the outer contour light guide head 311 is connected to one end of the outer contour annular light guide 313, the outer contour light guide coupling area 312 is arranged at the joint of the outer contour light guide head 311 and the outer contour annular light guide 313, and the outer contour light guide coupling area 312 is used for reflecting light entering the outer contour light guide head 311 to the outer contour annular light guide 313; a plurality of buckles 51 are uniformly distributed on the inner ring of the outer contour annular light guide 313, an annular groove 22 is formed in the shell 2, a plurality of inserting and clamping holes 52 are formed in the inner side wall of the annular groove 22, and the buckles 51 are clamped into the inserting and clamping holes 52, so that the outer contour light guide 31 is fixed in the annular groove 22. Specifically, a distal end face 3131 is provided on an end portion of the outer contour annular light guide 313 opposite to the outer contour light guide head 311, the distal end face 3131 being a vertical face, and the distal end face 3131 being for emitting light to supplement the illumination of the gap 7. Light emitted by the first light source 41 enters from the outer contour light guide head 311 and is reflected by the outer contour light guide coupling area 312 to enter into the outer contour annular light guide 313, the outer contour annular light guide 313 emits uniform light to illuminate the corresponding part on the modeling pattern area 11, and a small amount of light is emitted from the tail end face 3131 to supplement the light at the gap 7, so that the defect of the outer contour part caused by no light at the gap 7 is prevented, and the lighting effect is further improved. In this embodiment, the annular groove 22 is disposed on the housing 2, four inserting holes 52 are disposed on the inner side wall of the annular groove 22, four buckles 51 are disposed on the outer contour light guide 31, and the buckles 51 are snapped into the inserting holes 52, so that the outer contour light guide 31 is fixed in the annular groove 22, the distance between the gaps 7 is designed to be 10mm-12mm, the mold design of the outer contour light guide 31 is facilitated, and the mold stripping rate is improved.

In order to prevent the first light source 41 from deviating from the outer contour light guide head 311 to affect the light efficiency, the outer contour light guide head 311 is provided with an extension plate 3111, the extension plate 3111 is provided with a positioning pin 8, and the outer contour light guide head 311 is aligned with the first light source 41 and receives light emitted by the first light source 41; the positioning pins 8 are used for being matched with positioning holes arranged on the light source system 4 to limit the left, right, front and right positions of the outer contour light guide head 311; the high-precision relative position of the outer contour light guide head 311 and the first light source 41 is ensured, the relative displacement after installation is avoided, and the effective utilization rate of light is further improved. In this embodiment, the positioning hole is formed on the first circuit board, and the positioning pin 8 is inserted into the positioning hole, so that the high-precision relative position between the outer contour light guide head 311 and the first light source 41 is ensured, and the effective utilization rate of light is further improved.

In order to prevent that the light supplemented by the end face 3131 at the gap 7 is not as bright as the light emitted by the outer contour light guide 31, so that the overall brightness of the modeling pattern area 11 corresponding to the outer contour light guide 31 is uneven, the inner combination light guide 32 is provided with an extension section which is used for being inserted into the gap 7 to supplement the illumination of the gap 7. By means of this extension, a high uniformity of the overall brightness of the molding pattern region 11 corresponding to the outer contour light guide 31 can be ensured.

Further, the inner combined light guide 32 is an integral piece, and is composed of an inner combined base light guide 321, an inner combined part mirror image light guide 322, an inner combined light guide connecting structure 323 and an inner combined branched light guide lengthening end 324, wherein the inner combined branched light guide lengthening end 324 is an extension section and is arranged on the inner combined base light guide 321 and is used for being inserted into the gap 7; the inner combined partial mirrored light guide 322 is generated by mirror symmetry of the inner combined base light guide 321 without the inner combined bifurcated light guide extension 324 with respect to the central axis of the modeling pattern area 11; the inner combined base light guide 321 and the inner combined part mirror image light guide 322 are connected through an inner combined light guide connecting structure 323, and a hole site for installation is arranged on the inner combined light guide connecting structure 323. The inner split guide extension 324 is disposed within the gap 7 to ensure high uniformity of overall brightness in the contoured pattern area 11 corresponding to the outer contoured light guide 31. Specifically, the inner combined light guide connection structure 323 includes a first connection structure 3231 and a second connection structure 3232, the first connection structure 3231 is configured to connect between the inner combined base light guide 321 and the top of the inner combined partial mirror light guide 322, the second connection structure 3232 is configured to connect between the inner combined base light guide 321 and the bottom of the inner combined partial mirror light guide 322, and holes for mounting are provided on the first connection structure 3231 and the second connection structure 3232, respectively. The inner combined base light guide 321 comprises an inner combined base light guide head 3211, an inner combined base light guide coupling region 3212 and an inner combined base forked light guide 3213, wherein the inner combined base light guide head 3211 is connected with the inner combined base forked light guide 3213, the inner combined base light guide coupling region 3212 is arranged at the connection position of the inner combined base light guide head and the inner combined base light guide coupling region 3212, and the inner combined base light guide coupling region 3212 is used for reflecting light entering the inner combined base light guide head 3211 to the inner combined base forked light guide 3213. Specifically, the light emitted by the second light source 42 enters the inner combined base light guide head 3211, and is reflected by the inner combined base light guide coupling region 3212 into the inner combined base split light guide 3213, and the inner combined base split light guide 3213 emits uniform light. In this embodiment, two second light sources 42 are disposed on the second circuit board, one second light source 42 is matched with the inner combined base light guide head 3211 on the inner combined base light guide 321, the other second light source 42 is matched with the inner combined base light guide head 3211 of the inner combined partial mirror image light guide 322, the inner combined base light guide 321 and the inner combined branched light guide lengthening end 324 thereof are made to emit light simultaneously by one second light source 42, and the inner combined partial mirror image light guide 322 is made to emit light by the other second light source 42; thereby preventing the inner combination light guide 32 from being complicated in shape, resulting in uneven irradiation light formed by the inner combination light guide 32.

In order to prevent the second light source 42 from affecting the light efficiency due to the offset of the inner combined basic light guide head 3211, the inner combined light guide connecting structure 323 further comprises a third connecting structure 3233, the third connecting structure 3233 is used for connecting the inner combined basic light guide 321 and the inner combined part mirror image light guide 322 between the inner combined basic light guide heads 3211 respectively provided with the inner combined basic light guide 321 and the inner combined part mirror image light guide 322, the third connecting structure 3233 is further provided with a positioning pin 8, and the positioning pin 8 is used for being matched with a positioning hole provided on the light source system 4, so that the high-precision relative position of the inner combined light guide head 3211 and the second light source 42 is ensured, the relative displacement is avoided after the installation, and the effective utilization rate of light is further improved. In this embodiment, the second circuit board is provided with a positioning hole, and the positioning pin 8 is inserted into the positioning hole, so that the high-precision relative position between the inner combined basic light guide head 3211 and the second light source 42 is ensured, and the effective utilization rate of light is further improved.

In order to improve the uniformity of the light output from the inner combined base split light guide 3213, a grid pattern 9 is provided on the outer surface of the inner combined base split light guide 3213. In this embodiment, the outer surface of the inner combined base furcation light guide 3213 has a grid pattern 9 of 2mm x 2 mm.

In order to prevent stray light from leaking out and affecting brightness uniformity, light leakage coatings are arranged on the outer contour light guide coupling region 312 and the inner combined base light guide coupling region 3212. In this embodiment, the light-leaking coating is a black paint layer, so that stray light is prevented from leaking from the outer contour light-guiding coupling region 312 and the inner combined base light-guiding coupling region 3212 to affect brightness uniformity through the arrangement of the light-leaking coating.

In use, the first light source 41 and the second light source 42 provide light that uniformly illuminates the contoured pattern area 11 via the outer contoured light guide 31 and the inner combining light guide 32. In this embodiment, only one first light source 41 and two second light sources 42 are used, and the utilization rate of the light effect is ensured by matching with the outer contour light guide 31 and the inner combination light guide 32, so that the modeling pattern area 11 is uniformly illuminated, a smaller number of light sources are used as much as possible, and the problems that the direct-type array light sources in the prior art generate illumination waste in the shading area and have high cost can be effectively solved.

Claims

1. The automobile lamp based on the light pipe is characterized by comprising a mask, a shell, a light pipe assembly and a light source system, wherein the mask and the shell are connected in a sealing way to form a cavity, the mask comprises a modeling pattern area and a non-modeling pattern area, the non-modeling pattern area is a non-light-transmitting area, and the modeling pattern area is a light-transmitting area; the light pipe assembly is arranged in the cavity and is profiled in the modeling pattern area; the light source system is arranged on the shell and is used for providing a light source for the light pipe assembly, and light rays emitted by the light source enter the light pipe assembly and uniformly light rays emitted by the light pipe assembly illuminate the modeling pattern area; the light guide pipe assembly is a split piece and comprises an outer contour light guide pipe and an inner combined light guide pipe, the light source comprises a first light source and a second light source, the first light source is used for being matched with the outer contour light guide pipe, light rays emitted by the first light source enter the outer contour light guide pipe, and the outer contour light guide pipe emits uniform light rays to illuminate corresponding parts on the modeling pattern area; the second light source is used for being matched with the inner combination light guide pipe, light rays emitted by the second light source enter the inner combination light guide pipe, and the inner combination light guide pipe emits uniform light rays to illuminate the rest part on the modeling pattern area.

2. The light pipe-based automotive luminaire of claim 1, wherein: a clamping mechanism is arranged between the outer contour light pipe and the shell, and the clamping mechanism is used for fixing the outer contour light pipe on the shell; the clamping mechanism comprises a buckle and a plug-in hole, a plurality of buckles are arranged on the outer contour light pipe, a corresponding number of plug-in holes are arranged on the shell, and the buckles are clamped into the plug-in holes, so that the outer contour light pipe is fixed on the shell.

3. The light pipe-based automotive luminaire of claim 2, wherein: the outer contour light guide comprises an outer contour light guide head, an outer contour light guide coupling area and an outer contour annular light guide, wherein the outer contour annular light guide is in a non-closed annular shape, a gap is arranged between two ends of the outer contour light guide head, the outer contour light guide head is connected with one end of the outer contour annular light guide, the outer contour light guide coupling area is arranged at the joint of the outer contour light guide head and the outer contour light guide coupling area, and the outer contour light guide coupling area is used for reflecting light entering the outer contour light guide head to the outer contour annular light guide; a plurality of buckles are uniformly distributed on the inner ring of the outer contour annular light guide; the shell is provided with an annular groove, the inner side wall of the annular groove is provided with a corresponding number of inserting and clamping holes, and the clamping buckles are clamped into the inserting and clamping holes, so that the outer contour light guide pipe is fixed in the annular groove.

4. A light pipe-based automotive luminaire as defined in claim 3, characterized in that: the outer contour light guide head is used for being aligned with the first light source and receiving light rays emitted by the first light source, and the positioning pins are used for being matched with positioning holes arranged on the light source system to limit the left, right, front and right positions of the outer contour light guide head.

5. The light pipe-based automotive luminaire of claim 4, wherein: the inner combined light pipe is provided with an extension section which is used for being inserted into the gap to illuminate and supplement the gap.

6. The light pipe-based automotive luminaire of claim 5, wherein: the inner combined light guide pipe is supported on the shell through the bracket; the support is provided with a support groove, the support groove is used for limiting and supporting the inner combined light guide, a plurality of hole sites for installation are respectively arranged on the support and the inner combined light guide, a plurality of screw hole columns are arranged on the shell, screws sequentially penetrate through the hole sites on the inner combined light guide, the hole sites of the support are connected with the screw hole columns, so that the inner combined light guide is fixed on the shell and is positioned on the inner side of the outer contour light guide.

7. The light pipe-based automotive luminaire of claim 6, wherein: the inner combination light guide comprises an inner combination basic light guide, an inner combination part mirror image light guide, an inner combination light guide connecting structure and an inner combination forked light guide lengthening end, wherein the inner combination forked light guide lengthening end is the lengthening section and is arranged on the inner combination basic light guide and used for being inserted into the gap; the inner combined partial mirror image light guide is generated by mirror symmetry of the inner combined base light guide without the lengthened end of the inner combined bifurcated light guide relative to the central axis of the modeling pattern area; the inner combined base light guide and the inner combined part mirror image light guide are connected through the inner combined light guide connecting structure, and a plurality of hole sites for installation are arranged on the inner combined light guide connecting structure.

8. The light pipe-based automotive luminaire of claim 7, wherein: the inner combination basic light guide comprises an inner combination basic light guide head, an inner combination basic light guide coupling area and an inner combination basic forked light guide, wherein the inner combination basic light guide head is connected with the inner combination basic forked light guide, the inner combination basic light guide coupling area is arranged at the joint of the inner combination basic light guide coupling area and the inner combination basic light guide coupling area, and the inner combination basic light guide coupling area is used for reflecting light entering the inner combination basic light guide head to the inner combination basic forked light guide.

9. The light pipe-based automotive luminaire of claim 8, wherein: and light leakage coatings are arranged on the outer contour light guide coupling region and the inner combination basic light guide coupling region.

10. The light pipe-based automotive luminaire of claim 8, wherein: the outer surface of the inner combined foundation bifurcation light guide is provided with grid patterns.